<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <p>我是一段文字</p>
    <script>
      var p = document.querySelector("p");
      //禁止右键菜单 contextmenu
      p.addEventListener("contextmenu", function (e) {
        e.preventDefault();
      });
      //禁止选中文字 selectstart
      p.addEventListener("selectstart", function (e) {
        e.preventDefault();
      });
    </script>
  </body>
</html>
